(VX) Hydrangea Colourant 250g

Hydrangea Colourant harnesses iron and aluminium salts to shift pink hydrangea blooms toward blue or mauve, depending on variety and soil chemistry. Ideal for both container and garden-grown plants, simply mix the colourant into the soil where roots will develop for optimal colour transformation. Best results occur in acidic soils; alkaline conditions require doubled dosing. The formula dissolves readily in hot water for even distribution, making it straightforward to apply at planting or establishment. Perfect for gardeners seeking to intensify or alter hydrangea flower colour with precision.